High Efficiency File Transfer

High Efficiency File Transfer* is a file transfer technology provided commercially from Aspera©. It provides a reliable and faster (up to 1000x standard FTP) data transfer solution. This technology overcomes the challenge of large data set transfers over any Internet Protocol (IP) network, regardless of network conditions and geographic distance. This tool uses standard UDP (User Datagram Protocol), an alternative to TCP where guaranteed delivery is not required. Reliability is achieved in the application layer "FASP©", which retransmits the real packet loss on the channel.

The solution provides complete built-in security, precise transfer rate control for guaranteed data delivery times, end-to-end transfer progress reporting, and supports interoperable file and directory transfers.

The PO.DAAC offers this new file transfer option to our users. Please follow the steps below to use Aspera©.

Step 1: Download Aspera© Client (windows/linux/solaris/mac version)

To download software, use username download and password fasp

If you use a personal firewall on your PC, please read
http://www.asperasoft.com/support/docs/usage-notes.htm before proceeding
You must have System Administrator privileges to install this software
Based on your Operating System, please select the appropriate client software. Installing on:
- MS 2000/XP or Mac OS X adds the "fasp://" URL capability to your browser.
- Linux or Solaris adds the "asperawebget" command line executable.

Step 2: Download Data from PO.DAAC

Select data from our "Data Catalog" button found on our navigation bar.

After choosing, navigate to the directory you wish to download. Then,

PC and Mac users: download data directly by clicking on one of the High Efficiency File Transfer Download buttons. Note that there are two download options depending on your broadband connections:
- Regular broadband connection (Aspera© default transfer rate @ 1.5 Mbits/sec):
  (T1 / E1 / DSL / CableModem)
- High Speed broadband connection (Aspera© default transfer rate @ 15.0 Mbits/sec):
  (T3 / E3 / OC3 / OC12 / OC48)
When the High Efficiency File Transfer Web Client Authentication window pops up,
Username: guest, Password: podaac
Linux and Solaris users: Use the command line executable "asperawebget"
and insert the desired directory. Username: guest, Password: podaac